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openlayers/test/node/ol/util.test.js
2021-05-01 10:18:23 -06:00

26 lines
661 B
JavaScript

import expect from '../expect.js';
import {getUid} from '../../../src/ol/util.js';
describe('ol/util.js', () => {
describe('getUid()', function () {
it('is constant once generated', function () {
const a = {};
expect(getUid(a)).to.be(getUid(a));
});
it('generates a strictly increasing sequence', function () {
const a = {};
const b = {};
const c = {};
getUid(a);
getUid(c);
getUid(b);
// uid order should be a < c < b
expect(getUid(a)).to.be.lessThan(getUid(c));
expect(getUid(c)).to.be.lessThan(getUid(b));
expect(getUid(a)).to.be.lessThan(getUid(b));
});
});
});